Watch case



FIG. 1 is a front perspective view of my new design;

FIG. 2 is a top view;

FIG. 3 is a front view;

FIG. 4 is a side view (the other side view being a mirror image);

FIG. 5 is a bottom view; and

FIG. 6 is a back view.

The broken lines showings of hands in FIGS. 1 and 3 are environmental only and form no part of the claimed design. 

The ornamental design for a watch case, as shown and described. 